Excellent topic, teejay. I sure don't want my DNA in some database somewhere.
The line (scare tactic) they use on shows like CSI is when you are innocent of a crime it can rule you out. But when a person is ruled out, what exactly happens to the sample (or the record of the sample) you provided?? Do you get it back? Does it get obliterated from the record, with a certification to you that the DNA you provided, and the report derived from it, has been destroyed?
Here's another scary possibility: What if it became mandatory, as part of an initiative like Child Find, that every infant would have DNA testing done shortly after birth? It's so simple - a swab inside the baby's mouth and voilĂ ! What parent - in the emotional and hormonal throes of the first few days after birth does not want to do anything that has the potential to protect their child from harm, or help identify their child, if (god forbid) they happen to go missing for years?
The ethical problems of such vast testing are enormous - you can bet your sweet bippy that law enforcement, Homeland Security, and other branches of government would be very, very interested in having access to the data, for purposes other than that for which it was originally intended.
The other thing is, how do you prevent such cataloguing of your DNA when you go for bona fide medical tests, or if you are a blood donor? Once your blood leaves your arm, you relinquish control of it... and there's always MORE than enough to do the tests that are ordered and then some.
Seriously, I do NOT want to become a record in what essentially would be a DNA-phone book. Nope, not me.
Love, Scully